Wrench.



.W. A. WRIGHT. WBENOH.

APPLIoA'rIon FILED 001.25. 1910.

991,925. Patented may 9, 1911.

UNITED STATES PIQENT OFFICE.

WILLIAM A. WRIGHT, F RIDGE FARM, ILLINOIS, ASSIGNQR UF ONE-HALF TO HENRY C. WOODYARD, OF RIDGE FARM, ILLINOIS,

WRENCH.

Application filed October 25. 1910.

J'o tll't clio/a 'It may concern.'

lle it known that I. \Vti.|.|.\.\t 'nten'r. citizen oit the lfnited States. residing at. lidge "arm, in the county of vVermilion and tate ol' Illinois7 have invented certain new and useful lmpro'tements in \Vrenches, ol which the li'ollowing is a specilication.

',l`his invention has re'lerenee to Tent-hes in which an inner and an outer jaw are provided, which latter jaw swings as on a pivot, and has a threaded shank passing through an atfljusting nut.

It is the object o't' the present invention to provide ina wrench ot this kind an iinproved sliding .ttljustnicnt. hy which the wrench may be quickly adjusted to the work; and also to provide a strong and rigid structure without unduly increasing the weight of the wrench 'at its outer end, whereby a wrench is had which ean he easily handled.

The invention also has for its object to provide a novel construction and arrangement ot' parts to he hereinafter described and claimed.

.In order that the invention may he better understood, reference is had to the accom panying drawing, forming a part ot this spcciticatiot'l, in which drawing- Figure l is a side elevation ot' the wrench. Fig. 2 is a similar view partly in section. Fig. 3 is a cross section on the line 3---3 ol' Fig. l. Fig. -tviswa cross section on the line Lu-4; ot Ifiig. 1. Fig. 5 is an elevation ot' the adjustiinr nut removed.

Referring specifically to the drawing, 7 denotes the head ot the wrench7 the sante having an extended handle 8 at one end, and at. the opposite end is a fixed jaw comprising a hloek t) which is secured to the head ot' the wrench hy nuians ot' a shank Il on said block', said shanletitting in a groove made in the wrench head, and heingr held in said groove hy means ot' a t"ansverse pin I2. On one side ol. the, wrench head is an integral extension il having a. recess l-l which extends in the direction ol? the length of the wrench7 and receives the shank l5 el' the Inovahle jaw lt, said jaw heingffl'ormed integral on one end ot the shank. "The recess 14 isintersected hy an opening lf'tin which the adjusting `nut lt ot' the movable jaw is located. l`he nut is loose in the open- Specfcation of Letters Patent.

ateuted .Hav I). 15H1.

Serial No. 589.059.

ing so that the movahle `iaw may swing as on a pivot.

'lhe shank l5 is rectangular in cross section, and has threads It) on its narrow sides. 'I'he threads 2U of the nut I8 are interrupted at two diametrit-ally opposite points, as indicated at 2l. so that when the nut is adliusted so as to place said parts opposite the threads ot' the shank. the .shank will he loose..

and can then he slid Afreely hack and forth` in the nut to ell'ect a quick adjustment` ol" the jaw It to the work.

In order that the nut 1H may he at once placed in the desired position. l provide the outer surface thereof with distinguishing marks. 'Ihe marks indicating the'threadsl 2() comprise a series otI ridges 22 arranged in a rectangular lield, as shown in Fig. l. the same laing so located with respect to the threads that the latte' are in mesh with the threads of the shank when the ridges are on the outside ot' the opening 17. 'lhese marks are located on diametrically oppositex` sides ot the nut. so that; they may he visible from hoth sides ot' the wrench, and can also he lelt when two fingers are used 'for adjusting the nut. The marks t'or the interrupted portions 21 ot the nut threads conlprise a serfes ot ridges 2? arranged in a circular field, and occupying the same relation to the parts 2l as the ridges 22 do to the nut thrextds. y these two distinguishing marks tl e position ot' the two parts ot the nut is always apparent to the eye as well as to the touch, in view ot' which the nut can he at once placed in the desired position.

In the wrereh head 7 is a recess 2l which extends at; a .'ight angle to and opens into the ret-.ess lll. In said recess 2t is mounted a spring-pressed plunger 25 which engages the inner edgt ot' the shank 1.5. 'l`he spring l'or actuating said plunger is indicated at 2G and is located in a reduced portion .)7 ol the recess 24. 'lhe rear end ol" the planger has a reduced portion 2S around which a portion ol one end ol." the spring 26 is coiled. said end ol' the spring engaging the plunger. 'lhe oppositel end oll the spring if in contact. with the inner end ol the retin-.ed portion 27'ol tl.e recess 2l. 'l.`lie plunger carries a transverse pin 2t) which projt'fts l'roni opposite sides thereof, and

Works in slots 30 in opposite'walls of the recess 24, said slots opening through the Wrenchv head, and being in alineinent. The function of the pins and slots is to guide the plunger. v

The shank is sufficiently loose in the recess 14- so that it may rock in saidrecess, thereby giving the jaw 1G a swinging movement toward and from' the aw 9. The spring-pressed plunger serves to nor.- nially force the jaw 1G in the direction of the fined jaw 9, and in this position the outer edge of the shank 15 is in engagement with the corresponding wall of the recess 14, and the top of the nut 18 is in contact with the adjacent wall of the opening 17. The nut 1S therefore sustains the thrust on the jaw 16 when the Wrench is in operation, and said jaw is firmly and rigidly held in adjusted position on the work. lTo release the jaw 1G from the work without manipulating the nut 1S, it is necessary only to press inwardly on the lower end of the shank 15, whereupon the said shank is rocked in the recess 14 in a direction to swing said jaw away from the work. In order to facilitate the last described manipulation of the shank 15, the outer edge thereof, at its lower end, is made concave and serrated as indicated at 31 to afford a convenient hold for the thumb.

In the extension 13, in line with the reduced portion 27 of the recess 24, is an opening 32 to enable the spring 26 to be put in place.

I claim.: v

1. A Wrench comprising a head having at one end a fixed jaw, and an extension on one side adjacent to said jaw, said extension having a recess extending in the direction of the length of the wrench, and the extension also having an opening intersecting said recess, the wrench head having a recess extending at a right angle to the first-mentioned recess and opening thereinto, said second-mentioned recess. having a reduced inner portion, a springseating in the reduced portion of the recess, a plunger mounted in the second mentioned recess, and having a reduced inner end around Which one' end of the aforesaid spring is coiled, a movable jaW having `a threaded shank passing through the first- 'mentioned recess, and free to rock therein,I

said shank being engaged by the aforesaid plunger, and an' adjustable nut vthrough which the shank is threaded, said nut being located in the aforesaid opening intersecting the first-mentioned recess, v the end of said nut which is nearest'thejaws-normally engaging the adjacent wall of the opening.,l

2. A Wrench comprising a head having at. one end a fixed jaw, and an extension on one side'adjaeent to said jaw, said extension having a recess extending in the direction of the length of the wrench, and said extension also havin@ an o ienino' intersectino` said recess, a

D D b movable jaw having a threaded shank passing through the aforesaid recess and free to rock therein, an adjustable nut through which the shankis threaded, said nut being located in the aforesaid opening, and resilient means engageable with the shank -for swinging the same in a direction to advance the movable jaw in the direction of the fixed jaw, the end of the aforesaid nut nearest the jaws engaging the adjacent Wall of the aforesaid opening` when said movable jaw 1s swung in the last-mentioned direction.

In testimony whereof lI affix my'signature in presence of two Witnesses.

WILLIAM A. VRIGIIT.

IVitnesses H. C. VVOODYARD, It. W. Fisk. 

